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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 14, Number 4
BKCSDE 14(4)
April 20, 1993 

Photochemistry of 4-Aryl-4-Methyl-2-Cyclohexenone : Solvent Effect on the Excited States
Woo Ki Chae*, Eun Ju Kwon, Jung-Hyu Shin
Irradiation of 4-biphenylyl-4-methyl-2-cyclohexenone (5) in benzene or methanol produced trans-6-biphenylyl-5-methylbicyclo[3,1,0]hexan-2-o ne (5a) and 3-biphenylyl-4-methylcyclohex-2-enone (5b). Electronic configurations of the excited states for 5a and 5b were assigned as n, π* and π, π* triplet states respectively. Irradiation of 4-methyl-4(β-naphthyl)-2-cyclohexenone in benzene or methanol gave 4-methyl-3-(β -naphthyl)-2-cyclohexenone (6a), which is thought to arise from π, π* triplet state.
497 - 499
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